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Diffstat (limited to 'drivers/gpu/drm/xe/xe_pm.h')
-rw-r--r--drivers/gpu/drm/xe/xe_pm.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_pm.h b/drivers/gpu/drm/xe/xe_pm.h
new file mode 100644
index 0000000000..6b9031f7af
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_pm.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef _XE_PM_H_
+#define _XE_PM_H_
+
+#include <linux/pm_runtime.h>
+
+/*
+ * TODO: Threshold = 0 will block D3Cold.
+ * Before we can move this to a higher value (like 300), we need to:
+ * 1. rewrite the VRAM save / restore to avoid buffer object locks
+ */
+#define DEFAULT_VRAM_THRESHOLD 0 /* in MB */
+
+struct xe_device;
+
+int xe_pm_suspend(struct xe_device *xe);
+int xe_pm_resume(struct xe_device *xe);
+
+void xe_pm_init(struct xe_device *xe);
+void xe_pm_runtime_fini(struct xe_device *xe);
+int xe_pm_runtime_suspend(struct xe_device *xe);
+int xe_pm_runtime_resume(struct xe_device *xe);
+int xe_pm_runtime_get(struct xe_device *xe);
+int xe_pm_runtime_put(struct xe_device *xe);
+int xe_pm_runtime_get_if_active(struct xe_device *xe);
+void xe_pm_assert_unbounded_bridge(struct xe_device *xe);
+int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold);
+void xe_pm_d3cold_allowed_toggle(struct xe_device *xe);
+struct task_struct *xe_pm_read_callback_task(struct xe_device *xe);
+
+#endif